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Articles 1081 - 1110 of 25420
Full-Text Articles in Entire DC Network
Performance Analysis Of A Dc Nanogrid Heat Pump System For Residential House, Ehijie Ebewele, William Hutzel
Performance Analysis Of A Dc Nanogrid Heat Pump System For Residential House, Ehijie Ebewele, William Hutzel
Purdue Polytechnic Graduate Student Poster Symposium
The increasing demand for energy-efficient systems has led to the exploration of Direct Current (DC)-powered technologies in residential applications, as most residential appliances and devices now run on DC voltage. The future of renewable energy integration will depend heavily on powering the planet with DC voltage because most distributed energy systems (PV panels, batteries, etc.) are DC-driven. For this reason, energy efficiency in buildings is today a prime objective, among building services, the growth in HVAC systems energy use is particularly significant (50% of building consumption and 20% of total consumption in the USA.
Neuronal Signal Activity Image Classification, Ardavan Vakil, Miad Faezipour
Neuronal Signal Activity Image Classification, Ardavan Vakil, Miad Faezipour
Purdue Polytechnic Graduate Student Poster Symposium
Neurodegenerative disorders can cause signal disturbances on the neuronal spiking patterns within the brain. Parkinson’s disease, as an example, produces burst firings and synchronized oscillatory signal patterns. Accurately distinguishing between different brain spiking pattern activities is essential in finding effective neuromodulation or neurostimulation treatments for neurodegenerative disorders like Parkinson disease. Due to the lack of publicly available neuronal spiking pattern datasets containing different neuronal signal patterns and classes, we propose the generation of a novel three-class dataset. We then convert the generated signals into 2D images and separate the generated signal images into test and train datasets. We aim to …
Integrating Environmental Identity Into Engineering Education Through Augmented Reality, Mohammed Metwaly, Farid Breidi, Wade Goodridge, Sarah Bargal, Carie Green, Aqlan Faisal
Integrating Environmental Identity Into Engineering Education Through Augmented Reality, Mohammed Metwaly, Farid Breidi, Wade Goodridge, Sarah Bargal, Carie Green, Aqlan Faisal
Purdue Polytechnic Graduate Student Poster Symposium
This study aims to design, develop, and evaluate a Personalized Engineering Playground (PEP) that connects students' environmental experiences with engineering applications. It investigates the impact of early outdoor experiences on students' motivation to pursue engineering careers. Utilizing a comprehensive survey of over 150 engineering technology students, the study collected both quantitative and qualitative data on nature-related activities, career influences, and environmental perceptions. The findings indicate that activities such as building (23%), exploring (17%), and observing nature (20%) play a significant role in shaping engineering identity. Approximately 45% of the students reported that outdoor experiences had a positive influence on their …
Hierarchical Convolutional Attention Mixing (Hi-Cam) Transformer For Medical Image Segmentation, Md Motiur Rahman, Shiva Shokouhmand, Smriti Bhatt, Miad Faezipour
Hierarchical Convolutional Attention Mixing (Hi-Cam) Transformer For Medical Image Segmentation, Md Motiur Rahman, Shiva Shokouhmand, Smriti Bhatt, Miad Faezipour
Purdue Polytechnic Graduate Student Poster Symposium
We propose Hi-CAM, a Hierarchical-Convolutional Attention Mixing transformer for medical image segmentation. It uses a pre-trained MaxViT encoder and a novel decoder that combines multi-head self-attention, spatial attention, and squeeze-and-excitation modules to capture long-range dependencies. Deep and shallow convolutions enhance spatial features, while skip connections fuse multi-level features and suppress noise. Experiments on ACDC and Synapse datasets show that Hi-CAM significantly outperforms state-of-the-art models, highlighting the effectiveness of the hierarchical attention-mixing strategy.
Extended Reality-Enabled Teleoperation Platform For Industrial Operations, Israa Azzam, Farid Breidi
Extended Reality-Enabled Teleoperation Platform For Industrial Operations, Israa Azzam, Farid Breidi
Purdue Polytechnic Graduate Student Poster Symposium
Extended Reality (XR) environments enhance the efficacy of teleoperation systems, overcoming the limitations of 2D settings. This work aims to advance industrial teleoperations by investigating the capabilities of remote XR environments, selecting the optimal configuration, and developing an XR-Enabled Teleoperation Platform that integrates advanced controllers, allowing minimizing latency. The XR-Enabled Teleoperation Platform is designed integrating control protocols, including Adaptive Smoothing & Model Predictive Control to minimize latency and enhance synchronization. This framework is tested on a 6-DOF robotic arm, serving as a Digital Twin (DT), enabling bi-directional data exchange between the physical robotic arm and its virtual shadow
Enhancing Surgical Tool Classification Using A Semi-Supervised Learning Autoencoder Approach, Shiva Shokouhmand, Md Motiur Rahman, Smriti Bhatt, Suranjan Panigrahi, Miad Faezipour
Enhancing Surgical Tool Classification Using A Semi-Supervised Learning Autoencoder Approach, Shiva Shokouhmand, Md Motiur Rahman, Smriti Bhatt, Suranjan Panigrahi, Miad Faezipour
Purdue Polytechnic Graduate Student Poster Symposium
The purpose of this study is to develop a robust approach for identifying and classifying surgical instruments while addressing the challenges associated with traditional supervised learning methods, which require large annotated datasets. By comparing the performance of supervised machine learning and deep learning models with a semi-supervised autoencoder approach, this study aims to enhance efficiency and accuracy in automated and robotic-assisted surgical procedures. This will ultimately improve workflow optimization, error minimization, and real-time decision-making in the operating room
Efficient Heating For High Altitude Housing In Peru, Ajay Dalal, William Hutzel, Walter Leon-Salas
Efficient Heating For High Altitude Housing In Peru, Ajay Dalal, William Hutzel, Walter Leon-Salas
Purdue Polytechnic Graduate Student Poster Symposium
A research station is being built in Sumbay, Peru, located at an elevation of 13,543 feet above sea level. Because of the constant cold temperatures throughout the year and the remote off-grid location of the station, a efficient heating system is required for the on-site Airbnb residence. This project explores the viability of an air-source heat pump (ASHP) under high-altitude conditions with much lower air density. An Engineering Equation Solver (EES) model, an "altitude factor," and 8760-hour weather analysis were utilized to estimate the heating requirements. Preliminary results indicate as much as 40% derating in capacity at the high altitude, …
Demonstration Of A Digital Twin Framework For A Two-Actuator Hydraulic Application, Marvin R. Durango -Cogollo, Jose M. Garcia-Bravo
Demonstration Of A Digital Twin Framework For A Two-Actuator Hydraulic Application, Marvin R. Durango -Cogollo, Jose M. Garcia-Bravo
Purdue Polytechnic Graduate Student Poster Symposium
This project presents a digital twin framework for controlling a hydraulic crane using AI, mixed reality, and real-time actuation. Leveraging a Jetson Nano and Xbox Kinect for perception and a Raspberry Pi with DRV103 for control, the system enables adaptive motion planning and obstacle-aware navigation. A Unity-based interface integrated with HoloLens2 allows operators to visualize and manipulate the crane through FABRIK inverse kinematics. Real-time environmental mapping from Kinect enables obstacle detection to update the motion path dynamically. Early experiments confirm the ability to compute joint angles in real-time, detect environmental objects, and demonstrate closed-loop control in a virtual-physical hybrid system.
Compost Bin Monitoring System Through Iot And Lorawan, Nicolas Rendon-Arias, Luis Gerardo Ruiz Gonzalez, Sehyeon Lim, Walter Daniel Leon-Salas
Compost Bin Monitoring System Through Iot And Lorawan, Nicolas Rendon-Arias, Luis Gerardo Ruiz Gonzalez, Sehyeon Lim, Walter Daniel Leon-Salas
Purdue Polytechnic Graduate Student Poster Symposium
This project improves agricultural land management and composting techniques by utilizing sensors and the Internet of Things. The initiative intends to enhance sustainable agriculture practices, maximize resource usage, and minimize waste. LoRaWAN wireless technology and sensors are used to continuously monitor parameters like temperature and composting conditions (CO2, ammonia, and pH), allowing for improved compost quality and accurate decision making. A crucial step in the creation of our system was the deployment of the LoRaWAN network, which enables long-distance sensor monitoring. Additionally, our system has an intuitive web-based interface to visualize the data at any place.
Burn Severity Assessment Using Deep Learning: Balancing Performance And Computational Efficiency, Saeka Rahman, Md Motiur Rahman, Mo Rastgaar, Miad Faezipour
Burn Severity Assessment Using Deep Learning: Balancing Performance And Computational Efficiency, Saeka Rahman, Md Motiur Rahman, Mo Rastgaar, Miad Faezipour
Purdue Polytechnic Graduate Student Poster Symposium
Burn injuries present a substantial global public health challenge. This work presents a comprehensive analytical study of eight deep learning techniques designed for assessing burn severity in terms of four characteristics: inflammation, scar, uniformity, and pigmentation, in small datasets of 2-dimensional (2D) images captured using digital (smartphone) camera
A Preliminary Examination Of Chatgpt’S Capability In Developing Construction Education Instruments Through Bloom’S Taxonomy, Yanchao Zheng, Deniz Besiktepe, Luciana Debs
A Preliminary Examination Of Chatgpt’S Capability In Developing Construction Education Instruments Through Bloom’S Taxonomy, Yanchao Zheng, Deniz Besiktepe, Luciana Debs
Purdue Polytechnic Graduate Student Poster Symposium
Effective assessment is essential in construction management (CM) education to evaluate student understanding of industry-demanded skills. Integrating the Bloom’s Taxonomy, American Council for Construction Education (ACCE) provides student learning outcomes (SLOs) for targeted learning objectives, as well as guiding assessment development. However, crafting high-quality assessment questions remains challenging for CM instructors. This study explores the potential of ChatGPT to generate assessment questions aligned with Bloom’s Taxonomy and using two ACCE student learning outcomes (SLOs): 1) creating construction project cost estimates and 2) analyzing methods, materials, and equipment. Generated questions were evaluated for alignment with Bloom’s levels, clarity, sufficiency, feasibility, and …
Archival Literacy And Primary Source Literacy: A Collaborative Instructional Toolkit For Introductory Composition And Beyond, Kristin B. Leaman, Adriana Harmeyer
Archival Literacy And Primary Source Literacy: A Collaborative Instructional Toolkit For Introductory Composition And Beyond, Kristin B. Leaman, Adriana Harmeyer
Libraries Faculty and Staff Scholarship and Research
This article is a case study that addresses challenges archivists and introductory composition instructors can experience when working to embed archival and primary source literacy into a course and models how to successfully overcome related obstacles. Building on the excellent work of James Roussain, it employs the archivist-as-educator model not only to teach the students but also to train the disciplinary instructor. Teaching instructors archival and primary source literacy and training them how to teach these types of literacy enhances student success. Acknowledging the literature that discusses the ineffectiveness of one-shot guest lectures, the authors have designed and piloted an …
Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman
Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Critical and strategic minerals have become increasingly important in U.S. government civilian and military policymaking in recent years. This is demonstrated by the heavy use of such minerals in many critical civilian and military infrastructures. This work will discuss how this subject has been addressed in laws, presidential documents, and works by government agencies along with congressional oversight committees and support agencies. It will stress how the United States is heavily dependent on strategic minerals from adversarial foreign countries such as China and will examine U.S. efforts to increase its ability to produce such materials in the United States by …
Libraries Facilitating Knowledge Creation Through Podcasting: Exploring Podcasts As A Form Of Scholarship, Annette Bochenek, Sarah Huber, Renusree Varma Mudduluru
Libraries Facilitating Knowledge Creation Through Podcasting: Exploring Podcasts As A Form Of Scholarship, Annette Bochenek, Sarah Huber, Renusree Varma Mudduluru
Libraries Faculty and Staff Scholarship and Research
Students are increasingly expected to conduct research and scholarship. This paper explores podcast creation as a medium for students to deliver new knowledge and the elements of teaching and learning that support this outcome. Through focus groups, students at a large Midwestern university expressed the importance of contributing to the information landscape. The prospect of their podcasts contributing knowledge to academic communities held more interest to them than creating a podcast for an assignment. This paper addresses how librarians and libraries can support the information literacy standards and technical aspects of students creating new knowledge through a podcast assignment.
Pros And Cons Of Preservation Treatments, Buzz Powell
Pros And Cons Of Preservation Treatments, Buzz Powell
Local Transportation Asset Management Conference
No abstract provided.
Madison County, Indiana - A Case Study In Asset Management Planning, Craig M. Parks, Jessica Bastin
Madison County, Indiana - A Case Study In Asset Management Planning, Craig M. Parks, Jessica Bastin
Local Transportation Asset Management Conference
Many local governments are developing asset management plans to qualify for Community Crossings funding, however, the staff at Madison County Engineering Team had a goal to dive deeper and gain a thorough understanding of the funding gap that exists for them to achieve the desired level of service on their transportation system. Using AI for data collection and a unique pavement preservation optimization tool, the County partnered with Avenew, Inc. to identify their system needs and develop holistic approach to manage their assets.
Travel Behavior Study On Shared Micromobility Service, Yixiang Teng
Travel Behavior Study On Shared Micromobility Service, Yixiang Teng
Lyles School of Civil Engineering Graduate Student Reports
This study investigates the travel behavior on the shared micromobility service around Purdue University West Lafayette campus area. It aims to understand the shared micromobility user patterns and identify the barriers of adoption. The study was enlightened by the influence of pandemic on transportation choices and the shift on transportation habits, and the gap identified was the understanding of the college related population. The research method was a constructed survey distributed among Purdue University’s students, faculties and staffs. A total of 143 valid responses were collected, comprising 73 current users and 70 non-users. Results indicate that shared micromobility is primarily …
Finding Geometric Variances From Nominal Measurements, Austin Bridenthal
Finding Geometric Variances From Nominal Measurements, Austin Bridenthal
American Journal of Rising Scholar Activities
This study worked to find differences between the measurements of what parts should be and what they actually were. When a part is manufactured, it is given a nominal measurement which provides the exact geometric numbers representing that section of the part. The true measurements of parts are almost never exactly the same as the nominal measurement, due to varying production issues during component manufacture. A Hexagon Laser Scanner (LS) was used to create computer generated figures of the parts, while Siemens NX, CATIA V5, Creo, Solidworks, and Inventor softwares were used to create Computer-Aided Design (CAD) models of the …
Modification Of Process Inputs Using Hog Cooling Pads, Gilbert Benitez
Modification Of Process Inputs Using Hog Cooling Pads, Gilbert Benitez
American Journal of Rising Scholar Activities
Purdue University researchers have developed a low-cost hog cooling pad which uses ground-based water as a coolant for sows in farrowing crates. Initial testing has proven the positive effects of the unit on sow and piglet productivity, but thus far little research has been done on seeing whether or not the use of the pads reduces water consumption by the animals or how much energy is required to operate the units. This study examined data collected during an indirect calorimetry testing program. The limited availability of water sensors hindered the meaningfulness of the water consumption data, but the energy consumption …
Probing Surface Characteristics Of Plant-Based Protein Powders, Anthony Scott
Probing Surface Characteristics Of Plant-Based Protein Powders, Anthony Scott
American Journal of Rising Scholar Activities
Plant-based protein powders are expected to take-on a larger role in human diet as concerns regarding animal-based protein production grow. Unfortunately, not much physical property information about these proteins is available. This study was an attempt by researchers to perform an initial investigation of five powders: Mung bean, peas, pumpkin seed, Fava bean, and Soybeans. Typical particle sizing was determined, along with the surface morphology. Shear testing on the bulk materials was performed to establish the powders’ potential flowability. Inverse gas chromatography provided surface energies of the five protein types, and an X-ray photoelectron spectrograph was used to determine the …
Shock Pulse Absorption Using An Elastomeric Structure Enhanced With Non-Newtonian Fluid, Noah Herbert
Shock Pulse Absorption Using An Elastomeric Structure Enhanced With Non-Newtonian Fluid, Noah Herbert
American Journal of Rising Scholar Activities
Non-Newtonian fluids have unique properties which may make them ideal materials to be used in the manufacture of safety equipment. Different types of materials have widely differing properties, and researchers are only now beginning to investigate the physical properties of these various materials. Two different forms of impact experimentation were selected for the ongoing investigation, hammer blow testing and air cart collision testing. Specialty pucks were manufactured, along with control specimens for physical property determination. Normalized energy absorption in collision was recorded against the frequency of the response for 19 different materials. In general, the non-Newtonian fluid filled pucks exhibited …
Chemical Enhancement Of Mechanically Fibrillated Nanocellulose (Mcnf) Films For Improved Mechanical Performance, Robert Miller
Chemical Enhancement Of Mechanically Fibrillated Nanocellulose (Mcnf) Films For Improved Mechanical Performance, Robert Miller
American Journal of Rising Scholar Activities
Mechanically extracted cellulose nanofibrils (mCNF), which have not been chemically modified, were used to create mechanically isotropic films. Crosslinking systems like carbodiimides, poly-functional aziridines, blocked isocyanates, and polyamide epichlorohydrin were added to chemically crosslink the nanocellulose films and improve the mechanical properties. The process to make the casting mixtures involved taking 3.1wt% mCNF, DI water, and a premeasured crosslinker solution to create a three to one ratio of solids for the final mixture of crosslinker to mCNF. Two cases were analyzed with each of the different crosslinkers: one with a viscosifier and one without to determine the crosslinking compound. The …
Opening Thoughts, Carol S. Stwalley
Opening Thoughts, Carol S. Stwalley
American Journal of Rising Scholar Activities
No abstract provided.
Central Habits Of Highly Effective Tutors: Hospitable Practice, Rhetorical Listening, And Emotional Validation In The Writing Center, Edward A. English
Central Habits Of Highly Effective Tutors: Hospitable Practice, Rhetorical Listening, And Emotional Validation In The Writing Center, Edward A. English
The Writing Center Journal
This article explores hospitality as a theoretical framework for valuing emotional engagement and rhetorical listening in writing center consultations, challenging traditional views that prioritize rationality and detachment. Anchored in a university writing center, the study investigates how writing tutors engage with writers, adopting hospitality as a core principle. Semi-structured postconsultation interviews and a focus group allowed tutors to reflect collaboratively on their application of the hospitality framework. Thematic analysis with in vivo coding ensured participants’ voices remained central to the findings. By examining the lived experiences of tutors, the study highlights the dynamic relationship between emotional and rational responses in …
English Writing Centers In China: Opportunities, Challenges, And Paths Forward, Bradley Hughes, Jingtian Zhang
English Writing Centers In China: Opportunities, Challenges, And Paths Forward, Bradley Hughes, Jingtian Zhang
The Writing Center Journal
English writing centers at Chinese universities present a fascinating paradox. On one hand, the number of universities with writing centers and the professional interest in writing centers in China have grown steadily over the past two decades. But on the other, the number of centers is still modest and only a few centers have had a significant influence on the culture of writing on their campuses, which is surprising given the vast number of universities in China and the documented need for strengthening and expanding writing instruction in English. This international research study explores the current state of English writing …
Conducting Effective Literature Searches And Writing Strong Abstracts, Bert Chapman
Conducting Effective Literature Searches And Writing Strong Abstracts, Bert Chapman
Libraries Faculty and Staff Presentations
This invited presentation for students at Poland's War Studies University communicates ideas on how Ph.D. students at this institution can enhance their research quality. Specific content includes formulating your research question, determining research aims and methodology, reviewing a research question checklist, understanding the meaning of search terms you propose to utilize, devising effective search strategies, consulting multiple varieties of information resources from multiple countries, finding gaps in literature, being able to distinguish between nuances in literature and data, writing succinct abstracts, and enhancing the clarity of your prose.
Unleaded Aviation Fuel: Assessing Stakeholder Perceptions And Preparing An Organization For Change, Ryan Guthridge, Nicholas D. Wilson, Brandon Wild
Unleaded Aviation Fuel: Assessing Stakeholder Perceptions And Preparing An Organization For Change, Ryan Guthridge, Nicholas D. Wilson, Brandon Wild
Journal of Aviation Technology and Engineering
Since the Clean Air Act of 1996 banned the use of leaded fuel for automotive applications, leaded aviation gasoline (AVGAS) has become one of the leading sources of lead pollution in the nation due to the volume of AVGAS consumed in general aviation applications (GAMA, 2019). The Federal Aviation Administration has recently recognized this concern with the establishment of the Eliminate Aviation Gasoline Lead Emissions (EAGLE) initiative, which was formally established in February 2022 to foster an important campaign to research and inform the general aviation community on the process for transitioning to unleaded AVGAS. This essay seeks to inform …
Whither China?, Yeomin Yoon
Emerging Trends In Privacy And Security Control In Telecommunication Services Delivery: Challenges And Countermeasures, Young B. Choi
Emerging Trends In Privacy And Security Control In Telecommunication Services Delivery: Challenges And Countermeasures, Young B. Choi
KAUPA Letters
The rapid evolution of telecommunication services, driven by advancements in 5G, IoT, and cloud computing, has introduced significant privacy and security control challenges. These challenges arise from the increased attack surface, regulatory pressures, and evolving cyber threats. This paper explores key trends in privacy and security control issues, examines countermeasures such as advanced encryption, Zero Trust Architecture, and continuous monitoring, and discusses challenges and future directions in securing telecommunication services.
The Renaissance Figure Of Joseon, Choi Rip, Young B. Choi
The Renaissance Figure Of Joseon, Choi Rip, Young B. Choi
KAUPA Letters
This essay introduces various aspects of the prominent Renaissance scholar of Joseon Dynasty, Choi Rip including his life, era, and legacy, political thought, national and diplomatic views, life, and family philosophy, 15 characters as a Renaissance person, comparison with western figures and Korean historical figures closest to him.